The continental crust is made up of rocks that consist primarily of silica and alumina called the "sial". The next layer of the Earth is called the mantle.
Answer:
A security guard (also known as a security inspector, security officer, or protective agent) is a person employed by a government or private party to protect the employing party's assets (property, people, equipment, money, etc.) from a variety of hazards (such as waste, damaged property, unsafe worker behavior
Answer:
Heat
Explanation:
As the radioactive materials experience degradation, as underneath the surface in the earth's surface, enormous amounts of heat are generated to send their daughters products.
<span>Cracks in the ground near volcanoes that allow gases to escape are called Vents</span>
